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Certificate 5396

Downloadable version

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Safety and Security

Transport Dangerous
Goods Directorate
330 Sparks Street
Ottawa, Ontario K1A 0N5
Sécurité et sûreté

Direction générale du
transport des marchandises dangereuses
330, rue Sparks
Ottawa (Ontario) K1A 0N5

Equivalency Certificate

(Approval issued by the competent authority of Canada)

Certificate No.: SR 5396 (REN 10)

Certificate Holder: The Chemours Canada Company

Mode of Transport: Rail

Issue Date: 2017-02-27

Expiry Date: 2019-02-28


This Equivalency Certificate authorizes The Chemours Canada Company to handle, offer for transport or transport, and authorizes any person to handle or transport on behalf of the certificate holder, by tank cars, dangerous goods that are UN1052, HYDROGEN FLUORIDE, ANHYDROUS, Class 8(6.1), Packing Group I, in a manner that does not comply with clauses and b. of the Transport Canada Standard TP14877, "Containers for Transport of Dangerous Goods by Rail, a Transport Canada Standard", December 2013, as incorporated by reference in subparagraph 5.14(1)(b)(ii) of the Transportation of Dangerous Goods Regulations, if:

(a) subject to conditions (b) to (d) of this certificate, the tank car conforms to specification 112S400W, 112S500I, or 112S500W;

(b) the requirement for the tank car to be equipped with an exterior metal jacket is optional;

(c) the specification 112S400W tank car is equipped with a reclosing pressure relief valve having a start-to-discharge pressure of 2 068 kPa (300 psi), a flow rating pressure of 2 275 kPa (330 psi), and minimum relieving capacity of 5 403 m3/h (3 178 ft3/min);

(d) the specification 112S500I or 112S500W tank car is equipped with a reclosing pressure relief valve having a start-to-discharge pressure of 2 586 kPa (375 psi), a flow rating pressure of 2 844 kPa (412,5 psi), and minimum relieving capacity of 6 696 m3/h (3 939 ft3/min); and

(e) the Equivalency Certificate number "SR 5396" is marked on each long side of the tank car in letters and numbers no less than 100 mm (4 in.) high.

Note: The issuance of this Equivalency Certificate in no way reduces the certificate holder's responsibility to comply with any other requirements of the Transportation of Dangerous Goods Regulations, the Technical Instructions for the Safe Transportation of Dangerous Goods by Air, the International Maritime Dangerous Goods Code, and the Canadian Aviation Regulationsnot specifically addressed in this certificate.

Signature of Issuing Authority

Image in permit

David Lamarche


Permits and Approvals division

(The following is for information purposes only and is not part of the certificate.)

Contact Person:

Chris Connors

Logistics & Compliance Manager

The Chemours Canada Company

L5N0C9 Canada






Explanatory Note

This Equivalency Certificate authorizes the transportation of anhydrous hydrogen fluoride (UN1052) in pressure tank cars with the following characteristics that are different from the requirements of clauses and b. of the Transport Canada Standard TP14877:

1) The tank cars are not equipped with external jackets as is currently prescribed for products with significant inhalation hazards. This continues an existing long time practice for tank cars in this particular service in order to allow for the easy detection of hydrogen "blisters" on the external surface of the tank when they occur.

2) The tank cars are equipped with safety relief valves that have a lower flow capacity than required by current regulations; the Applicant has demonstrated that the survivability of these cars in a pool fire situation is well in excess of the required 100 minutes. This is equivalent to other tank cars with larger safety valves in other dangerous goods service. The rationale is that, in situations requiring incident mitigation, a larger pressure relief valve could result in more material being released, which would be detrimental to the safety of the public, company employees and emergency responders.

Legend for Certificate Number

SH - Road, SR - Rail, SA - Air, SM - Marine

SU - More than one Mode of Transport

Ren. - Renewal

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